Q: What are the prime factors of the number 144,555,432?

 A: 2, 3, 7, 71, 12119

Why are those the prime factors of the number 144,555,432?

Prime factors are the prime numbers that can be multipled together to equal the original number. You find the factors by dividing by prime numbers. It is best shown by creating a Factor Tree.

Factor Tree for the number 144,555,432

144,555,432
Factor Arrows
272,277,716
Factor Arrows
236,138,858
Factor Arrows
218,069,429
Factor Arrows
36,023,143
Factor Arrows
7860,449
Factor Arrows
7112,119

The numbers in bold above are the prime factors. If there are multiples, you only count them one time. This leads us to our prime factors of:

2, 3, 7, 71, 12119

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 7 x 71 x 12,119 = 144,555,432

This can also be written as 23 x 31 x 71 x 711 x 12,1191 = 144,555,432

If you would like to know more, or need additional explanation, please review our prime factorization explanation.


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